IRIX and Software

How to uninstall an Irix patch?

I'm building an R5000 Indy and got hit with this defect:
http://forums.nekochan.net/viewtopic.php?f=10&t=4521751
...any hints on how to uninstall a patch?

I loaded inst from a remote server/directory but uninstalling a patch is not obvious.

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:Cube: :Octane2: :Octane2: :Octane: :O2: :O2: :O2: :Indigo2IMP: :Indigo2IMP: :Indigo: :Indy: :Indy: :Indy:
I'm pretty sure it's just "remove", unless you've purged the patch history to save space.

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Damn the torpedoes, full speed ahead!

There are those who say I'm a bit of a curmudgeon. To them I reply: "GET OFF MY LAWN!"

:Indigo: :Octane: :Indigo2: :Indigo2IMP: :Indy: :PI: :O3x0: :ChallengeL: :O2000R: (single-CM)
Code:
versions remove patch1234


whatever number the patch has